Tom Donaly wrote:
Wrong. In the first place, you obviously don't know the criterion for
resonance. In the second place you just assume the number
90 without any reason. In the third place, the number 37
has only your assumption for the necessity of a 90 degree
phase shift to justify its existence. As I wrote before, this
is pretty poor shooting for a professional symbol slinger.

Tom, you obviously don't know what you are talking
about or how to do the analysis and are now just waving
your hands in emotional frustration.

The criterion for resonance is a 90 degree phase shift
end-to-end in the stub. MicroSmith and antenna analyzer
measurements verify the shortened stub is resonant at
the design frequency with the 100 ohm section of 10
degrees and the 600 ohm section a tad longer than 43
degrees. I have been designing these shortened dual-Z0
stubs for at least 20 years.

The larger question is: Why don't you know how to
verify or disprove my figures? Is this subject beyond
your engineering comprehension level?
--
73, Cecil http://www.w5dxp.com